[test] Fix widen-iv.ll under NPM

The -loop-flatten legacy pass preserves loop analyses. The legacy PM
will check all passes that preserve loop analyses that they preserve
LCSSA. This implicitly involves running -loop-simplify. The test
shouldn't depend on verify flags being set in order to run
-loop-simplify, so explicitly add it. The new PM ends up not running it
otherwise.

diff --git a/llvm/test/Transforms/LoopFlatten/widen-iv.ll b/llvm/test/Transforms/LoopFlatten/widen-iv.ll
index 9ac9215..a6b13e4 100644 (file)
--- a/llvm/test/Transforms/LoopFlatten/widen-iv.ll
+++ b/llvm/test/Transforms/LoopFlatten/widen-iv.ll
@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -S -loop-flatten -loop-flatten-widen-iv=true -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=CHECK
-; RUN: opt < %s -S -loop-flatten -loop-flatten-widen-iv=false -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=DONTWIDEN
+; RUN: opt < %s -S -loop-simplify -loop-flatten -loop-flatten-widen-iv=true -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=CHECK
+; RUN: opt < %s -S -loop-simplify -loop-flatten -loop-flatten-widen-iv=false -verify-loop-info -verify-dom-info -verify-scev -verify | FileCheck %s --check-prefix=DONTWIDEN
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"